Issue #28115: ZIP creation test requires zlib.

Lib/test/test_zipfile.py

@@ -2073,6 +2073,7 @@ class CommandLineTest(unittest.TestCase):
                                   PYTHONIOENCODING='ascii:backslashreplace')
             self.assertEqual(out, expected)
 
+    @requires_zlib
     def test_create_command(self):
         self.addCleanup(unlink, TESTFN)
         with open(TESTFN, 'w') as f: